Briton who took on Sergei Magnitsky network faces libel case in UK – The Independent

“A former Moscow police officer is suing a British businessman who exposed how a network of corrupt officials and shadowy criminal underworld figures were behind the largest tax fraud in Russian history. Lieutenant Colonel Pavel Karpov has launched libel and defamation proceedings in the High Court against William Browder, a millionaire hedge-fund magnate who has campaigned against corruption within the Russian government after his lawyer Sergei Magnitsky was tortured and died in police custody.”